1. The physical and Chemical properties of bronquial secretion;Charman;Brit J Dis Chest,1974
2. Tracheobronchial secretions;Yeager;Am J Med,1971
3. Observation of the secretion on the surface of the bronchioles with the scannding electron microscope;Ebert;Am Rev Respir Dis,1975
4. The ultrastructure of normal large bronchi;Jeffery;Bronches,1973
5. Mucus and acetylcysteine;Wilde;Eur J Resp Dis,1980